Propagation of the Mammary Tumor Milk Agent in Tumors from C 57 Black Mice. ∗

Abstract

Summary

Mice of some sublines of the C₅₇ black stock may propagate and transmit the mammary tumor agent. The agent may be recovered from spontaneous mammary cancers which developed in mice of the strain and may survive for at least 10 passages of these tumors in mice without the agent.